I haven't been game to go full keto, just lowered my carbs. My excuse is that I'm eating with and cooking for family who wouldn't eat that way themselves. The food I take to work is pretty much keto, though.

Have you come across Dr Stacey Sims before? She's a research scientist who studies women's health and nutrition. Your mention of fasting reminded me of her research. There's evidence that fasting doesn't have as beneficial effects for women as it does for men and can put us into stress mode. I know I don't sleep well if I go to bed hungry, so while I try not to eat right before bed, my list meal needs to be no earlier than 5pm or 6pm for me to not be hungry at bedtime.